was proposed in [1]}, with \(n\)  some order one parameter.
For the present example, one can indeed express \(\Delta \)  in terms of the tension \({\cal T}\sim \lambda \exp ({\frac{5}{4}}\phi _0)\)  of the neutral domain wall
\(\begin{split} \Delta \sim L_y\sim {\cal T}^{-1}, \end{split}\) 
